Riot If Trinity is proving to be too good now...
Perhaps you could kill 2 birds with one stone by replacing the CDR on Sheen with movement speed. This would effect Trinity and IBG both of which seem to be too be giving too much CDR.
If a few more stats on Trinity would be needed to make it good 7% movement speed and back up to 30AD would be enough.
Lich bane would just get a build path change.